Cometic Gasket MLS Cylinder Head Gasket

2003–2015 Dodge / Chrysler / Jeep / Ram 5.7L Gen-3 Hemi

Part #: C5468-056

Overview

The Cometic Gasket 5.7L Gen-3 Hemi .056in MLS Cylinder Head Gasket is a precision-engineered sealing solution designed for a broad range of Dodge, Chrysler, Jeep, and Ram vehicles equipped with the 5.7L Gen-3 Hemi engine. Built to withstand the demanding conditions of high-performance and daily driving, this gasket ensures a reliable seal between the cylinder head and engine block, preventing leaks and maintaining optimal compression.

Ideal for automotive enthusiasts, mechanics, and professionals performing engine rebuilds, repairs, or upgrades, this gasket delivers consistent durability and sealing integrity. Whether restoring a classic or maintaining a modern muscle vehicle, it preserves engine power and efficiency under high stress and temperature conditions.

Key Features

Cometic’s MLS Cylinder Head Gasket incorporates advanced materials and design elements to meet the rigorous demands of modern engines:

• Multi-Layer Steel (MLS) construction with three to five layers of corrosion-resistant stainless steel for superior strength and longevity
• Embossed outer layers coated with heat-resistant Viton rubber on both sides for exceptional sealing performance
• Viton coating withstands temperatures up to 250°C (482°F), ensuring reliability in extreme heat environments
• Precision bore size of 3.950 inches, matching factory specifications for the 5.7L Gen-3 Hemi engine
• Optimized thickness of .056 inches for proper sealing and gasket rebound under varying load conditions
• Designed to accommodate varying surface finishes and maintain sealing integrity in both OEM and performance applications
• Direct fit for the left-hand side (LHS) cylinder head, ensuring straightforward installation and compatibility

Construction & Design

The Cometic MLS gasket features a sophisticated multi-layer steel design, combining three to five layers of high-grade stainless steel. This layered construction provides exceptional strength and flexibility, allowing the gasket to rebound after compression and maintain a tight, leak-free seal. Embossed outer layers conform to surface irregularities on the cylinder head and engine block, enhancing sealing performance.

Both sides of the gasket are coated with Viton rubber, a synthetic fluoropolymer known for its outstanding heat resistance and chemical stability. This coating protects the gasket from corrosion and degradation caused by exposure to engine fluids and extreme temperatures, ensuring long-lasting durability and consistent performance.

Installation & Fitment

This gasket is designed as a direct replacement for the left-hand side cylinder head of the 5.7L Gen-3 Hemi engine. It fits a wide range of vehicles, including:

• 2003–2010 Dodge Ram 1500, 2500, 3500
• 2004–2015 Dodge Durango
• 2005–2015 Chrysler 300
• 2005–2008 Dodge Magnum
• 2005–2015 Jeep Grand Cherokee
• 2006–2015 Dodge Charger
• 2009–2015 Dodge Challenger
• 2011–2015 Ram 1500, 2500, 3500
• 2006–2010 Jeep Commander

Installation requires standard cylinder head gasket replacement procedures. It is recommended to follow manufacturer torque specifications and engine service guidelines to ensure proper sealing and avoid damage. No modifications are necessary for fitment when installed on compatible vehicles.

What's Included

• One Cometic MLS Cylinder Head Gasket, .056 inch thickness, left-hand side

Ideal For

This gasket is perfect for automotive enthusiasts, professional mechanics, and engine builders who demand a high-quality, durable sealing solution for 5.7L Gen-3 Hemi-powered vehicles. It is well-suited for engine rebuilds, repairs, and performance upgrades, providing reliable sealing under the rigors of daily driving, towing, and spirited performance applications.

Cometic Gasket supplies high-performance sealing solutions for motorsports and high-stress engine builds, with a strong focus on modern gasket materials like multi-layer steel (MLS) head gaskets. Their catalog spans head gaskets and complete gasket sets across a wide range of applications, helping builders maintain reliable combustion and fluid sealing under extreme pressure and heat.